NC0020052_Inspection_20190312

ROY COOPER" '
Governor R�
r6
MICHAEL S.REGAN k
Secretary
LINDA CULPEPPER q
Director °"""
NORTH -CAROLINA
8nrrron►r,enfaf quality
March 12, 2019
Mr. Jim Robinette, Mayor
Town of McAdenville
P.O. Box 9
McAdenville,NC 28101
Subject: Compliance Evaluation Inspection
McAdenville WWTP
NPDES Permit No. NCO020052
Gaston County
Dear Mr. Robinette:
Enclosed is a copy of the Compliance Evaluation Inspection for the inspection conducted
at the subject facility on March 12, 2019, by Ori Tuvia. Earl Beach's, David Shellenbarger' s and
Kevin Greave's cooperation during the site visit was much appreciated. Please advise the staff
involved with this NPDES Permit by forwarding a copy of the enclosed report.
The report should be self-explanatory;however,should you have any questions concerning
this report, please do not hesitate to contact Ori Tuvia at (704) 235-2190, or at
ori.tuviakncdenr.gov.
Sincerely,
DocuSigned by:
A14CC681 AF27425...
W. Corey Basinger
Regional Supervisor
Mooresville Regional Office
Division of Water Resources
Cc: NPDES Unit(Laserfiche)
MRO Files (Laserfiche)
Stephanie Scheringer(E-Copy)
State of North Carolina I Environmental Quality I Water Resources I Water Quality Regional Operations
Mooresville Regional Office 1 610 East Center Avenue,Suite 301 1 Mooresville,North Carolina 28115
704 663 1699

United States Environmental Protection Agency
Form Approved.
EPA Washington,D.C.20460 OMB No.2040-0057
Water Compliance Inspection Report Approval expires 8-31-98
Section A: National Data System Coding(i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 IN 2 15 1 3 I NCO020052 111 12 I 19/03/12 I17 18 I S I 19 I G I 201 I
21I111II IIIIIIIIIII III IIII I IIIIII IIIIIIIII1 r6
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
67 1.0 70 71 [„ I 72 n 73 L_LJ74 751
I I I I I I I80
u Section B: Facility Data u
Name and Location of Facility Inspected(For Industrial Users discharging to POTW,also include Entry Time/Date Permit Effective Date
POTW name and NPDES oermit Number) 09:45AM 19/03/12 15/02/01
McAdenville WWTP
End Of Church St Exit Time/Date Permit Expiration Date
Mc Adenville NC 28101 11:15AM 19/03/12 20/01/31
Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data
David Shellenbarger//704-866-6726/
Earl C Beach/ORC/704-854-6657/
Name,Address of Responsible Official/Title/Phone and Fax Number
Contacted
Michael C Graham,PO Box 1748 Gastonia NC 28053/Assistant Division Manager
W WT/704-866-6896/7049220619 No
Section C:Areas Evaluated During Inspection(Check only those areas evaluated)
Permit Flow Measurement Operations&Maintenance Records/Reports
Self-Monitoring Program Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Laboratory
Section D:Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s)and Signature(s)of Inspector(s) Agency/Office/Phone and Fax Numbers Date
DocuSigned by:
Ori A Tuvia — � MRO WQ//704-663-1699/
�� - __ 3/12/2019
IBB057A2DE017498...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
W. Corey Basinger Division of Water Quality//704-2;
EPA Form 3560-3(Rev 9-94)Previous editions are obsolete.
DocuSigned by:
• 3/12/2019
A14CC681AF27425... Page# 1

NPDES yr/mo/day Inspection Type 1
31 NCO020052 I11 121 19/03/12 117 18 JCJ
Section D:Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary)
Page# 2

Permit: NCO020052 Owner-Facility: McAdenville WWTP
Inspection Date: 03/12/2019 Inspection Type: Compliance Evaluation
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ 0 ❑
application?
Is the facility as described in the permit? 0 ❑ ❑ ❑
#Are there any special conditions for the permit? ❑ 0 ❑ ❑
Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑
Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑
Comment: The subject permit expires on 1/31/2020. The facility is expecting to rescind its permit in the
next couple of months.
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑
Is all required information readily available, complete and current? 0 ❑ ❑ ❑
Are all records maintained for 3 years(lab. reg. required 5 years)? ❑ ❑ ❑
Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑
Is the chain-of-custody complete? 0 ❑ ❑ ❑
Dates,times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters? 0 ❑ ❑ ❑
Has the facility submitted its annual compliance report to users and DWQ? 0 ❑ ❑ ❑
(If the facility is=or>5 MGD permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ 0 ❑
on each shift?
Is the ORC visitation log available and current? 0 ❑ ❑ ❑
Is the ORC certified at grade equal to or higher than the facility classification? 0 ❑ ❑ ❑
Is the backup operator certified at one grade less or greater than the facility classification? ❑ ❑ ❑
Is a copy of the current NPDES permit available on site? ❑ ❑ ❑
Facility has copy of previous year's Annual Report on file for review? ❑ ❑ 0 ❑
Comment: The records reviewed during the inspection were organized and well maintained. DMRs,
COCs, Calibration lops, ORC visitation logs and lab bench sheets were reviewed for the
Period July 2018 through January 2019.
Laboratory Yes No NA NE
Page# 3

Permit: NCO020052 Owner-Facility: McAdenville WWTP
Inspection Date: 03/12/2019 Inspection Type: Compliance Evaluation
Laboratory Yes No NA NE
Are field parameters performed by certified personnel or laboratory? 0 ❑ ❑ ❑
Are all other parameters(excluding field parameters)performed by a certified lab? 0 ❑ ❑ ❑
#Is the facility using a contract lab? 0 ❑ ❑ ❑
#Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑
Celsius)?
Incubator(Fecal Coliform)set to 44.5 degrees Celsius+/-0.2 degrees? ❑ ❑ 0 ❑
Incubator(BOD)set to 20.0 degrees Celsius+/- 1.0 degrees? ❑ ❑ 0 ❑
Comment: nfluent and effluent analyses are performed under the City of Gastonia's Crowders Creek
WWTP Laboratory(Certification#210), Shealy Labs is also used as needed. The laboratory
instrumentation used for field analyses (PH, TRC, temperature) appeared to be properly
calibrated/verified and documented.
Influent Sampling Yes No NA NE
#Is composite sampling flow proportional? 0 ❑ ❑ ❑
Is sample collected above side streams? 0 ❑ ❑ ❑
Is proper volume collected? 0 ❑ ❑ ❑
Is the tubing clean? 0 ❑ ❑ ❑
#Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑
Celsius)?
Is sampling performed according to the permit? 0 ❑ ❑ ❑
Comment: The subject permit requires influent composite samples (BOD and TSS)
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? 0 ❑ ❑ ❑
Is sample collected below all treatment units? 0 ❑ ❑ ❑
Is proper volume collected? 0 ❑ ❑ ❑
Is the tubing clean? 0 ❑ ❑ ❑
#Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑
Celsius)?
Is the facility sampling performed as required by the permit(frequency, sampling type 0 ❑ ❑ ❑
representative)?
Comment: The subject permit requires effluent composite and grab samples. Aliquot sampling taken
during the inspection was 195 ml in volume
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ❑ ❑ ❑
Page# 4

Permit: NCO020052 Owner-Facility: McAdenville WWTP
Inspection Date: 03/12/2019 Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Does the facility analyze process control parameters,for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: At the time of the inspection the wastewater treatment plant appeared to be properly
operated and well maintained
Bar Screens Yes No NA NE
Type of bar screen
a.Manual
b.Mechanical ❑
Are the bars adequately screening debris? 0 ❑ ❑ ❑
Is the screen free of excessive debris? 0 ❑ ❑ ❑
Is disposal of screening in compliance? 0 ❑ ❑ ❑
Is the unit in good condition? ❑ 0 ❑ ❑
Comment: Bar screen has evidence of rusting and degradation and needs maintenance. The facility is
expecting to rescind its permit in the next couple of months but if there are any delays in the
construction the bar screen should be repaired or replaced.
Grit Removal Yes No NA NE
Type of grit removal
a.Manual
b.Mechanical ❑
Is the grit free of excessive organic matter? 0 ❑ ❑ ❑
Is the grit free of excessive odor? 0 ❑ ❑ ❑
#Is disposal of grit in compliance? 0 ❑ ❑ ❑
Comment:
Aeration Basins Yes No NA NE
Mode of operation Ext.Air
Type of aeration system Diffused
Is the basin free of dead spots? 0 ❑ ❑ ❑
Are surface aerators and mixers operational? ❑ ❑ 0 ❑
Are the diffusers operational? N ❑ ❑ ❑
Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑
Does the foam cover less than 25%of the basin's surface? 0 ❑ ❑ ❑
Is the DO level acceptable? ❑ ❑ ❑
Page# 5

Permit: NCO020052 Owner-Facility: McAdenville WWTP
Inspection Date: 03/12/2019 Inspection Type: Compliance Evaluation
Aeration Basins Yes No NA NE
Is the DO level acceptable?(1.0 to 3.0 mg/1) 0 ❑ ❑ ❑
Comment: Soda ash is added to maintain appropriate pH/alkalinity levels.
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑
Is the site free of excessive buildup of solids in center well of circular clarifier? 0 ❑ ❑ ❑
Are weirs level? 0 ❑ ❑ ❑
Is the site free of weir blockage? 0 ❑ ❑ ❑
Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑
Is scum removal adequate? 0 ❑ ❑ ❑
Is the site free of excessive floating sludge? 0 ❑ ❑ ❑
Is the drive unit operational? 0 ❑ ❑ ❑
Is the return rate acceptable (low turbulence)? 0 ❑ ❑ ❑
Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑
Is the sludge blanket level acceptable? (Approximately'/of the sidewall depth) 0 ❑ ❑ ❑
Comment:
Pumps-RAS-WAS Yes No NA NE
Are pumps in place? 0 ❑ ❑ ❑
Are pumps operational? 0 ❑ ❑ ❑
Are there adequate spare parts and supplies on site? ❑ ❑ 0 ❑
Comment:
Disinfection-Liquid Yes No NA NE
Is there adequate reserve supply of disinfectant? 0 ❑ ❑ ❑
(Sodium Hypochlorite) Is pump feed system operational? ❑ ❑ 0 ❑
Is bulk storage tank containment area adequate? (free of leaks/open drains) ❑ ❑ 0 ❑
Is the level of chlorine residual acceptable? 0 ❑ ❑ ❑
Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑
Is there chlorine residual prior to de-chlorination? 0 ❑ ❑ ❑
Comment: The wastewater is disinfected by a tablet calcium hypochlorite and potable water mixture.
De-chlorination Yes No NA NE
Page# 6

Permit: NCO020052 Owner-Facility: McAdenville WWTP
Inspection Date: 03/12/2019 Inspection Type: Compliance Evaluation
De-chlorination Yes No NA NE
Type of system ? Tablet
Is the feed ratio proportional to chlorine amount(1 to 1)? ❑ ❑ ❑
Is storage appropriate for cylinders? M ❑ ❑ ❑
#Is de-chlorination substance stored away from chlorine containers? ❑ ❑ 0 ❑
Comment:
Are the tablets the proper size and type? 0 ❑ ❑ ❑
Are tablet de-chlorinators operational? 0 ❑ ❑ ❑
Number of tubes in use? 4
Comment:
Flow Measurement- Effluent Yes No NA NE
#Is flow meter used for reporting? 0 ❑ ❑ ❑
Is flow meter calibrated annually? 0 ❑ ❑ ❑
Is the flow meter operational? 0 ❑ ❑ ❑
(If units are separated) Does the chart recorder match the flow meter? 0 ❑ ❑ ❑
Comment: Last calibrated on 1/17/2019 by Citi LLC
Aerobic Digester Yes No NA NE
Is the capacity adequate? 0 ❑ ❑ ❑
Is the mixing adequate? 0 ❑ ❑ ❑
Is the site free of excessive foaming in the tank? 0 ❑ ❑ ❑
#Is the odor acceptable? 0 ❑ ❑ ❑
#Is tankage available for properly waste sludge? 0 ❑ ❑ ❑
Comment: Digester solids are transported and disposed at the influent structure of the Two Rivers
Utilities/Eagle Road WWTP for final treatment and disposal. Pumped and Transported by
Stanley Environmental Services.
Page# 7